宝浪油田宝北区块油藏特征与储量参数再认识

Oil reservoir characteristics and reserve parameters recognition of north block in Baolang oilfield

宝浪油田宝北区块目前已完钻各类井119口,井网基本完善,井控程度大幅提高,地质构造和油藏特征认识不断加深,储量计算发生较大的变化,油藏储量规模需要重新评估。通过对该区块油藏特征的新认识,分析了各项计算参数变化情况及其对储量规模的影响,结果表明,对储量计算结果影响较大的是含油面积、有效厚度和含油饱和度,三项参数的变化共导致储量减少6.98×104 t。

At present,there are 119 drilled wells in north block of Baolang oilfield,with basically imperfect well pattern and greatly improved well control degree.As the understandings on geological structure and reservoir characteristics have been deepened,bigger changes have been taken place in reserves calculation and the reservoir reserves need to be reevaluated.Combined with reserves recalculation of north block of Baolang oilfield,the research on new understandings of the block reservoir characteristics,reserves parameters changes and their effects on reserves have been carried out.